Kindliness carries a feeling of warmth and personal affection, not just polite behavior. Her kindliness made the new students feel at home.
Pro Tip 2/3
Genuine Intent
Actions done with kindliness are sincere and come from a desire to be helpful or friendly. He offered his seat with kindliness, recognizing her tiredness.
Pro Tip 3/3
Beyond Courtesy
Kindliness implies a deeper level of care than common courtesy; it's heartfelt. The kindliness in his voice soothed the worried child.